Sea-anchor.



N. Mel. CAMPBELL.

SEA ANCHOR.

APPLICATION mm NOV. 22. 19H.

1 ,285,558. Patented Nov. 19, 1918.

NORMAN MoIVOR CAMPBELL, or CHISWICK, LONDON, ENGLAND.

SEA-ANCHOR.

Application filed November 22, 1917.

To all whom it may concern:

Be it known that I, NORMAN MclvoR CAMPBELL, a subject of the King of Great Britain, and resident of Number 20 Homefield Road, Chiswick, in the county of Lon don, in the Kingdom of England, have invented new and useful Improvements in Sea-Anchors, of which the following is the specification.

The invention relates to improvements in sea anchors as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially in the novel construction and arrangement of a float and a blade, whereby a definite resist ance to the drift of the boat is set up, and the violence of a sea is to some extent initigated.

The objects of the invention are to save the lives of the passengers and the crews in disasters to ships sailing the waters, to steady all types of boats in rough weather, particularly the smaller boats serving as tenders or life saving craft to the comparatively large steamers or steamships, to reduce the cost of maintenance of such equipment, to conserve space in life boats and generally to provide a simple, durable and eflicient sea anchor.

In the drawings, Figure 1 is a front elevation of the anchor.

Fig. 2 is a side elevation.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, the float 1 is here shown in cylindrical shape and made of a tubular metal center 2 fitting into and rigid with the end caps 3, the latter having the lugs 4: projecting downwardly therefrom.

It is of course obvious that the float 1 1s water tight and also that it may be made of any material and in many different shapes, so long as it comes within the scope of the novel matter claimed within.

The eye 5 is screw threaded centrally into the part 2, and,forms the support for the hook of the block and tackle 6, the purpose of which is explained in detail hereinafter.

The arms 7 are secured to the lugs 4 by the eye bolts 8 and nuts 9 preferably on the rear side of said lugs 4.

The said arms 7 are adapted to fold closely to said float 1 in the collapsed state Specification of Letters Patent.

Patented Nov. 19, 1918.

Serial No. 203,398.

of the anchor and in their extended pos1 tions stand out at right angles therefrom.

Furthermore it may be said that the arms 7 are in round rod form extending from the flatheads 8 secured to said lugs to the flat sections 9 having bolt holes therethrough.

The blades 10, in upper and lower sections 11 and 12 secured together by the hinges 13, are rigidly held to the arms 7 by the plain bolts 14L and nuts 15, and the eye bolts 16 and nuts 17.

The fiat sections 9 of said arms engage the rear sides of the sections 11 and 12; consequently the blades in their extended position present a considerable surface to the water below the float 1, the shape being preferably rectangular.

The rigidity of the structure, especially the hinged blades in relation to the float is a very strong feature of this invention, but on the other hand the collapsibility is of great importance and by reference to the drawings in following this description, itwill be seen that by the removal of a few bolts or other fasteners, the parts can be separated and stowed away within a very small space.

The bridle is formed of the looped ropes 18 and 19 the rope 18 at its ends being secured to an eye bolt 8 and an eye bolts 16 on the one side and the rope 19 being secured to an eye bolt 8 and an eye bolt 16 on the other side, said ropes centrally passing through and engaging the shackle 20.

The hawser 21 is also secured to the shackle and extends to the boat; therefore the strain of the pull will always maintain the anchor in a vertical as well as a transverse position in relation to said boat, that is to say, across the bow of the boat though of course a reasonable distance therefrom.

The block and tackle is intended to carry an oil receptacle for smoothing the sea in front of the boat and thus lessen the risk of seas breaking over the bow and flooding or upsetting the boat.

In the operation of this invention, the parts collapsed and separated are stowed away conveniently in the life boat in such a way as to be ready for instant assembling and use.

The parts are assembled by opening out the arms 7 to their extended position and unfolding the blades to their open position.

The fiat sections of said arms are placed across the blades close to the ends thereof and rigidly secured thereto by the plain blades being suspended below the float 1 and maintaining their position edge down Ward.

It Will thus be seen that the full face of the blades ofiers resistance to the pull of the hawser and this keeps the stem of the boat up to the sea, thereby preventing any chance of the boat taking said sea broadside on.

The float on top of the water serves to break the crests of the waves which materially lessens the chances of swamping.

There are many other practical advantages for this invention, as for instance the facilities it offers for pouring oil on the turbulent waters in the right place in front of the boat not at the sides, also the dura bility and etliciency, for many others do not maintain their buoyancy and instead of being a protecting drag, they become a dangerous drag; furthermore canvas and many other forms of drags or sea anchors are very destructible and frequently are rendered useless by mold, dampness, rats and other causes; therefore the present invention which can be made to suit any climate or conditions is of general service throughout the world. Various changes may be made Without departing from the spirit of the invention solongas they remain Within the scope of the claims for novelty following.

p I WhatI claim is:

'1.- Asea anchor comprising a float, collars rigidly secured to said float and having lugs projecting therefrom, a barrier member formed inlongitudinal sections hinged together, arms-pivotally secured to saidlugs and adapted to fold up to said float in the-collapsed state of the, anchorv barrier in vertical blade form, secured to said arms, abridle adapted to make a sub.- stantially even pull on said float and blade portion and fastened to a hawser and a traveling cable connection from said-float,

adapted to be fastened .to the boat and form a carrier from saidboat-to and fromsaid float.

Signed at Montreal,

day of October, 1917.

NORMAN MoI'VORjGAMPBELL.

Vitnesses RITA Hanna, I. FEATI-IERSTONHAUGI-L Canada, this 31st Copies of this patent may be obtained for fiveeents each, by addressing the Cemmissioner of Patents.

. v Washington, D. 0., Y 

